pub fn interpolated_q(
first_rank: f64,
max_rank_value: f64,
rank: i64,
max_rank: i64,
) -> f64Expand description
One coefficient interpolated between its first and last rank.
Interpolation is linear in ln(q), so a rank ladder compounds evenly
instead of front-loading. A single-rank component (max_rank <= 1) is worth
its first-rank value.